perf: bump the concurrency count to 20

app.py

@@ -202,4 +202,4 @@ with gr.Blocks(css="style.css", title=f"Realtime Latent Consistency Model") as d
     gr.Examples(examples=EXAMPLES, inputs=[prompt_box], label="Examples")
 
 if __name__ == "__main__":
-    demo.queue(concurrency_count=4, api_open=False).launch()
+    demo.queue(concurrency_count=20, api_open=False).launch()